Filibuster Holds Up Vote on CIA Nominee

WASHINGTON—A confirmation vote on a new Central Intelligence Agency chief was tripped up by an old-fashioned filibuster as Sen. Rand Paul (R., Ky.) held the floor for much of Wednesday pressing for an administration promise to never use unmanned drones to kill Americans on U.S. soil who aren't involved in combat.

Instead of voting on John Brennan's nomination to head the CIA, the Senate was transfixed by the rare filibuster, which...